Science, asked by tushar541, 1 year ago

plz tell this ans ..................

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Answered by khobaibakmal
1
  1. The figure '9' indicates its atomic mass or mass number.
  2. The figure '4' indicates its atomic number.
  3. The number of protons in atom x = atomic number = 4
  4. The number of neutrons = Mass number - number of protons = 9 - 4 = 5
  5. The number of electrons = number of protons (in case of a neutral atom)=4
tushar541: thanks
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